The Alaska Railroad (ARRC) is developing a program to design, develop, and implement a communication-based vital positive train control (PTC) system called collision avoidance system (CAS). This system will ensure an environment in which the safety of ARRC passenger and freight train operations in centralized traffic control (CTC) and non-signalized direct traffic control (DTC) will be significantly enhanced as well as providing for efficient train operations. The proposed safety enhancements include: Generating and delivering safe mandatory directives, Fail-safely enforcing authority limits to prevent train-to-train collisions, Fail-safely enforcing speed restrictions to prevent over speed derailments, Protecting roadway workers within their assigned limits from incursions, and Protecting train movements from a switch aligned in the wrong position.


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    RCAS RAILROAD COLLISION AVOIDANCE SYSTEM

    NEWLOVE ROD J / NEWLOVE DON C | European Patent Office | 2016

    Free access


    COLLISION AVOIDANCE SUPPORT SYSTEM OF VEHICLE IN RAILROAD CROSSING

    FUJINAMI KOHEI | European Patent Office | 2015

    Free access

    Alaska railroad

    Ohlson, O.F. | Engineering Index Backfile | 1931


    COLLISION AVOIDANCE SYSTEM, COLLISION AVOIDANCE METHOD, AND COLLISION AVOIDANCE PROGRAM

    HIRAMOTO KAZUKI | European Patent Office | 2023

    Free access